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Finding the Fourth Proportional to 116,396.48, 160,620 and 68,651.84

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Solution

The fourth proportional to 116,396.48, 160,620 and 68,651.84 is: 94,735.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,396.48 : 160,620 = 68,651.84 : x
  2. Step 2: Convert to fraction form
    116,396.48/160,620 = 68,651.84/x
  3. Step 3: Cross multiply
    116,396.48x = 160,620 × 68,651.84
  4. Step 4: Simplify right side
    116,396.48x = 11,026,858,540.80
  5. Step 5: Solve for x
    x = 11,026,858,540.80/116,396.48
  6. Step 6: Final answer
    x = 94,735.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.